/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraSystemViewModel.h
Checks whether or not an emitter is pinned in the stack UI
bool GetIsEmitterPinned ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FNiagaraEmitterHandleViewModel](API\Plugins\NiagaraEditor\ViewModels\FNiagaraEmitterHandleViewModel) > EmitterHandleModel )